When describing something as "olive-sized", it is often helpful to have a variety of synonyms at your disposal. Here are a few options to consider:
1. Small: This is a straightforward option that can be used in almost any context.
2. Petite: This synonym has a slightly more elegant connotation.
3. Tiny: This word conveys a sense of extreme smallness.
4. Miniature: This word is often used to describe small versions of larger objects.
5. Diminutive: This word has a somewhat formal tone and is often used in more literary contexts.
6. Lilliputian: This word has a whimsical, almost childlike quality to it.